The web address is a private link used to test websites and apps on your own computer. When you type this link into a browser, you are telling your computer to look inside itself for a specific program. What Does the Address Mean?
Two programs cannot occupy port 11501 at the same time. If a background process is already using it, your new application will crash or fail to launch. netstat -ano | findstr :11501 Use code with caution.
“Localhost” refers to your own computer (typically mapped to IP address 127.0. 0.1 ), and “3000” is the port number where developm... http localhost 11501
Who are you? In Chinese.
lsof -i :11501
A port number is a 16-bit integer (ranging from 0 to 65,535) that acts as a logical channel for network communication. It allows a single computer to run multiple network services simultaneously, each "listening" on a different port. Ports are categorized into three main ranges:
: Developers often assign unique ports like 11501 to run local instances of databases, APIs, or web servers. This allows them to run multiple services simultaneously—for example, a frontend on port 3000 and a backend on port 11501—without interference. The web address is a private link used
No—no localhost port should be exposed to the public internet. Localhost is designed for local communication only. Use a reverse proxy, deploy to a cloud server, or use services like ngrok (with caution) for temporary external access.